Cited by 158Protein Structure and DynamicsEnzyme Structure and FunctionRNA and protein synthesis mechanisms

An improved protein decoy set for testing energy functions for protein structure prediction

Tsai, Jerry, Bonneau, Richard, Morozov, Alexandre V., Kuhlman, Brian, Rohl, Carol A., Baker, David·2003·Proteins: Structure, Function, and Bioinformatics

Abstract

We have improved the original Rosetta centroid/backbone decoy set by increasing the number of proteins and frequency of near native models and by building on sidechains and minimizing clashes. The new set consists of 1,400 model structures for 78 different and diverse protein targets and provides a challenging set for the testing and evaluation of scoring functions. We evaluated the extent to which a variety of all‐atom energy functions could identify the native and close‐to‐native structures in the new decoy sets. Of various implicit solvent models, we found that a solvent‐accessible surface area–based solvation provided the best enrichment and discrimination of close‐to‐native decoys. The combination of this solvation treatment with Lennard Jones terms and the original Rosetta energy provided better enrichment and discrimination than any of the individual terms. The results also highlight the differences in accuracy of NMR and X‐ray crystal structures: a large energy gap was observed between native and non‐native conformations for X‐ray structures but not for NMR structures. Proteins 2003. © 2003 Wiley‐Liss, Inc.

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  • A second more fundamental problem appears to be the rugged nature of the refinement landscape, with local energy barriers preventing convergence to high accuracy, at least using realizable amounts of computer time.

    “A second more fundamental problem appears to be the rugged nature of the refinement landscape, with local energy barriers preventing convergence to high accuracy, at least using realizable amounts of computer time (identifying the global minimum with current scoring functions does not seem to be an issue29).”

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Research works printed but not linked: 4

  1. [7]7. Simons KT, Ruczinski I, Kooperberg C, Fox BA, Bystroff C, Baker D. Improved recognition of native-like protein structures using a combination of sequence-dependent and sequence-independent features of proteins. Proteins 1999;34:82-95.
  2. [9]9. Plaxco KW, Simons KT, Baker D. Contact order, transition state placement and the refolding rates of single domain proteins. J Mol Biol 1998;277:985-994.
  3. [24]24. Gordon DB, Mayo SL. Radical performance enhancements for combinatorial optimization algorithms based on the dead-end elimination theorem. J Comp Chem 1998;19:1505-1514.
  4. [33]33. Morozov AV, Kortemme T, Baker D. Evaluation of models of electrostatic potentials. J Phys Chem B 2003;107:2075-2090.

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Authors
Tsai, J., Bonneau, R., Morozov, A. V., Kuhlman, B., Rohl, C. A., & Baker, D.
Affiliations
  • Texas A&M University (US)
  • Institute for Systems Biology (US)
  • University of Washington (US)
  • University of California, Santa Cruz (US)
Corresponding author
Tsai, Jerry
Venue
Proteins: Structure, Function, and Bioinformatics
Publisher
Wiley
Published
2003-08-05
Volume
53
Issue
1
Pages
76-87
ISSN
  • 0887-3585 (ISSN-L)
  • 1097-0134
OpenAlex
W2131169717
Cited by
158
References
34
Citations by year
2025: 2 · 2022: 1 · 2021: 1 · 2020: 5 · 2019: 6 · 2018: 3 · 2017: 9 · 2016: 8 · 2015: 7 · 2014: 10 · 2013: 7 · 2012: 6
FWCI
3.56
Type
journal article
Language
en
Open access
closed
Locations
  • Proteins Structure Function and Bioinformatics (publishedVersion)
  • PubMed (publishedVersion)
Funders
Serbian Academy of Sciences and Arts
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
  • Physical Sciences › Materials Science › Materials Chemistry › Enzyme Structure and Function
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA and protein synthesis mechanisms
Keywords
protein structure prediction, scoring functions, implicit solvent, NMR structure, X-ray crystal structure
MeSH terms
Algorithms, Hydrogen Bonding, Protein Conformation, Proteins, Solvents

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